Today's Summary
Right now Longmont has sunny weather. The thermometer currently shows 32.3°C. With wind from the south-east, it feels noticeably colder, around 26.8°C. UV levels are elevated today – remember sun protection if you're outdoors. During the day temperatures will range between 10.4°C and 32.5°C.
Hourly forecast – Longmont, today
Sep 10, 16:00
31 °C
Sunny
Sep 10, 17:00
25 °C
Sunny
Sep 10, 18:00
20 °C
Overcast
Sep 10, 19:00
20 °C
Overcast
Sep 10, 20:00
17 °C
Overcast
Sep 10, 21:00
17 °C
Overcast
Sep 10, 22:00
18 °C
Cloudy
Sep 10, 23:00
16 °C
Cloudy
Sep 11, 00:00
14 °C
Cloudy
Sep 11, 01:00
13 °C
Cloudy
Sep 11, 02:00
13 °C
Clear
Sep 11, 03:00
12 °C
Clear
Sep 11, 04:00
12 °C
Clear
Sep 11, 05:00
13 °C
Sunny
Sep 11, 06:00
20 °C
Partly cloudy
Sep 11, 07:00
23 °C
Overcast
Sep 11, 08:00
26 °C
Overcast
Sep 11, 09:00
28 °C
Overcast
Sep 11, 10:00
30 °C
Overcast
Sep 11, 11:00
32 °C
Sunny
Sep 11, 12:00
34 °C
Overcast
Sep 11, 13:00
33 °C
Overcast
Sep 11, 14:00
33 °C
Overcast
Sep 11, 15:00
32 °C
Patchy rain possible
Time
16
17
18
19
20
21
22
23
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
Temperature (°C)
Chance of rain (%)
0
0
9
10
16
15
6
4
6
7
1
1
1
1
2
8
9
9
9
1
9
9
9
9
Precipitation
Wind (km/h)
ESE
18
18
E
16
16
SE
13
13
S
10
10
SSW
3
3
WSW
2
2
NW
8
8
WNW
9
9
WNW
7
7
WNW
3
3
W
3
3
WNW
3
3
SW
1
1
SSE
1
1
E
1
1
SSW
3
3
S
4
4
SE
5
5
E
8
8
E
10
10
E
8
8
NW
5
5
W
28
28
SSE
18
18
Pressure (hPa)
1007
1008
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1010
1009
1008
1007
1005
1004
1003
1003
1003
Humidity (%)
Cloud cover (%)
14-day weather forecast – Longmont
14-day trend for Longmont: Temperatures stay fairly stable over the period with no big swings. Lows can drop to around 9.3°C at night, with daytime highs up to 34.9°C.
Date
Sep 10
Sep 11
Sep 12
Sep 13
Sep 14
Sep 15
Sep 16
Sep 17
Sep 18
Sep 19
Sep 20
Sep 21
Sep 22
Sep 23
Temperature (°C)
Chance of rain (%)
1
36
57
17
57
86
72
17
4
1
57
2
1
1
Precipitation
Wind max (km/h)
18
28
24
24
26
17
12
16
18
19
11
21
19
16
| Date | Weather | Min °C | Max °C | Sunrise | Sunset | Moonrise | Moonset | Moon phase |
|---|---|---|---|---|---|---|---|---|
| September 10, 2026 |
|
10 °C | 33 °C | 06:36 | 19:18 | 05:45 | 18:57 | New Moon (0 %) |
| September 11, 2026 |
|
12 °C | 34 °C | 06:37 | 19:16 | 07:02 | 19:22 | New Moon (0 %) |
| September 12, 2026 |
|
12 °C | 28 °C | 06:38 | 19:14 | 08:17 | 19:47 | New Moon (3 %) |
| September 13, 2026 |
|
12 °C | 35 °C | 06:39 | 19:13 | 09:31 | 20:14 | Waxing Crescent (8 %) |
| September 14, 2026 |
|
9 °C | 30 °C | 06:40 | 19:11 | 10:44 | 20:44 | Waxing Crescent (14 %) |
| September 15, 2026 |
|
13 °C | 23 °C | 06:41 | 19:09 | 11:55 | 21:19 | Waxing Crescent (23 %) |
| September 16, 2026 |
|
12 °C | 20 °C | 06:42 | 19:08 | 13:03 | 22:01 | First Quarter (32 %) |
| September 17, 2026 |
|
11 °C | 27 °C | 06:43 | 19:06 | 14:05 | 22:50 | First Quarter (42 %) |
| September 18, 2026 |
|
15 °C | 28 °C | 06:44 | 19:04 | 14:59 | 23:45 | First Quarter (53 %) |
| September 19, 2026 |
|
13 °C | 30 °C | 06:45 | 19:03 | 15:44 | Does not set today | First Quarter (63 %) |
| September 20, 2026 |
|
16 °C | 27 °C | 06:46 | 19:01 | 16:21 | 00:44 | Waxing Moon (73 %) |
| September 21, 2026 |
|
14 °C | 31 °C | 06:47 | 18:59 | 16:51 | 01:46 | Waxing Moon (82 %) |
| September 22, 2026 |
|
10 °C | 27 °C | 06:48 | 18:58 | 17:17 | 02:49 | Waxing Moon (89 %) |
| September 23, 2026 |
|
10 °C | 29 °C | 06:49 | 18:56 | 17:40 | 03:50 | Waxing Moon (95 %) |